DPP - Arithmetic L9 - Time Work - I.pdf

PLUS Code SHAH10 Quant by Ronak Shah GENESIS Batch DPP – Set 19 Arithmetic L9 - Time Work - I...

PLUS Code SHAH10 Quant by Ronak Shah GENESIS Batch DPP – Set 19 Arithmetic L9 - Time Work - I (Solutions at the End) 1. The area of a circle varies as the square of its radius. Given that the area of a circle whose radius is 7 ft is 196 sq ft, then the area (in sq ft) of a circle whose radius is 8 ft is _______. 2. A varies directly with B when C is constant and inversely with C when B is constant. A is 16, when B is 28 and C is 7. Find the value of A, when B is 9 and C is 6. 1) 6 2) 7 3) 8 4) 9 3. The number of men and women in a conference hall are in the ratio 5 : 4. If three men and six women join the conference, then the number of men and women in the conference hall will be in the ratio 7 : 6. Find the original number of men and women in the conference hall. 1) 48, 60 2) 60, 48 3) 30, 24 4) 40, 32 4. Quantities a and b are inversely proportional to each other. When a = 8, b = 240, find b when a = 6 _______. 5. The marks obtained by Raju in Maths, Physics, and Chemistry are in the ratio 2 : 3 : 4. If the total marks that Raju obtained in these three subjects is 189, how many marks did Raju score in Maths? 1) 21 2) 42 3) 63 4) 84 Telegram Group: t.me/Unacademy_Ronak Shah PLUS Code SHAH10 Quant by Ronak Shah 6. A fort had provisions for 150 men for 45 days. After ten days, 25 men left the fort. How long will the food last at the same rate for the remaining men? 1) 40 days 2) 28 days 3) 50 days 4) 42 days 7. There are two variables x and y, where x varies directly as the cube root of y. When y = 8, x = 2. Find x when y = 216. 1) 6 2) 12 3) 18 4) 24 8. Eighteen men take 30 days to complete a piece of work working 10 hours a day. Find the time taken by 25 men to complete five times as much work working 12 hours a day. 1) 30 days 2) 36 days 3) 72 days 4) 90 days 9. Nine farmers take 6 hours to plough 18 acres of land. How many acres of land can 16 farmers plough in 21 hours? (Assume that the rate of work of each farmer is the same) _______ 10. A garrison of 2,000 men has provisions for 20 weeks at the rate of 2.5 kg per day per man. After 4 weeks, 500 more men join the garrison. For how many more weeks, will the remaining provisions last at the rate of 2 kg per day per man? 1) 12 2) 15 3) 16 4) 20 Telegram Group: t.me/Unacademy_Ronak Shah PLUS Code SHAH10 Quant by Ronak Shah Solutions 1. Answer: 256 Solution: 2. Answer: Option 1 Solution: 3. Answer: Option 2 Solution: Telegram Group: t.me/Unacademy_Ronak Shah PLUS Code SHAH10 Quant by Ronak Shah 4. Answer: 320 Solution: 5. Answer: option 2 Solution: 6. Answer: Option 4 Solution: 7. Answer: option 1 Solution: Telegram Group: t.me/Unacademy_Ronak Shah PLUS Code SHAH10 Quant by Ronak Shah 8. Answer: Option 4 Solution: 9. Answer: 112 Solution: 10. Answer: Option 3 Telegram Group: t.me/Unacademy_Ronak Shah PLUS Code SHAH10 Quant by Ronak Shah Solution: Telegram Group: t.me/Unacademy_Ronak Shah